長(zhǎng)螺旋鉆孔壓灌樁施工技術(shù)研究與應(yīng)用

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摘  要：基于長(zhǎng)螺旋鉆孔壓灌混凝土樁在施工過程中樁身垂直度以及提鉆時(shí)螺旋葉片軟土不易清理等問題，通過實(shí)際工程案例，結(jié)合工程自身施工特點(diǎn)對(duì)其施工工藝進(jìn)行了針對(duì)性的改進(jìn)，得到了良好的經(jīng)濟(jì)和技術(shù)效益，并為后期長(zhǎng)螺旋鉆孔壓灌樁施工提供了有效的參考。

關(guān)鍵詞：長(zhǎng)螺旋壓灌樁;混凝土樁;施工工藝;施工技術(shù)

中圖分類號(hào)：TU753       文獻(xiàn)標(biāo)志碼：A          文章編號(hào)：2095-2945（2020）01-0181-03

Abstract： Based on the problems such as the verticality of long spiral drilled pressure cast-in-place concrete pile in the construction process and the difficulty of cleaning the spiral blade soft soil during drilling， through the actual engineering case， according to the construction characteristics of the project， the construction technology is improved， and good economic and technical benefits are obtained， which provides an effective reference for the later construction of long spiral bored cast-in-place pile.

Keywords： long screw cast-in-place pile; concrete pile; construction technology; construction technology

長(zhǎng)螺旋鉆孔壓灌樁應(yīng)用于工程實(shí)踐已經(jīng)超過了200多年，由于其操作方便、造價(jià)成本低、可循環(huán)使用、清理費(fèi)用低等優(yōu)點(diǎn)，被廣泛應(yīng)用于房屋建筑、橋梁、擋土墻、市政等新建及改造加固項(xiàng)目中。（剩余3009字）